X5043 XICOR [Xicor Inc.], X5043 Datasheet - Page 13

• Manufacturer Part Number: X5043
• Description: CPU Supervisor with 4K SPI EEPROM
• Manufacturer: XICOR [Xicor Inc.]

X5043/X5045
Power-Up and Power-Down Timing
RESET Output Timing
Note: (5) This parameter is periodically sampled and not 100% tested.
CS/WDI vs. RESET/RESET Timing
RESET/RESET Output Timing
REV 1.1.2 5/29/01
Symbol
Symbol
V
t
t
t
V
PURST
RPD
RVALID
t
t
WDO
t
t
CST
RST
TRIP
R
F
(5)
(5)
(5)
Watchdog Time Out Period,
CS Pulse Width to Reset the Watchdog
Reset Time Out
Reset Trip Point Voltage, (-4.5A)
Reset Trip Point Voltage, (Blank)
Reset Trip Point Voltage, (-2.7A)
Reset Trip Point Voltage, (-2.7)
Power-up Reset Time Out
V
V
V
Reset Valid V
CC
CC
CC
WD1 = 1, WD0 = 0
WD1 = 0, WD0 = 1
WD1 = 0, WD0 = 0
CS/WDI
RESET
RESET
Detect to Reset/Output
Fall Time
Rise Time
RESET (X5043)
RESET (X5045)
CC
V
CC
Parameter
0 Volts
Parameter
V
TRIP
t
WDO
t
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CST
t
R
t
PURST
t
RST
t
PURST
Min.
100
450
400
100
1
t
WDO
Min.
4.25
2.85
2.55
100
4.5
0.1
10
1
Characteristics subject to change without notice.
Typ.
200
600
200
1.4
V
TRIP
t
t
RST
RPD
t
F
Typ.
4.62
4.38
2.92
2.62
200
Max.
300
800
400
2
Max.
4.75
400
500
4.5
3.0
2.7
Unit
sec
ms
ms
ms
ns
Unit
13 of 20
ms
ns
µs
ns
V
V